Sash-lock.



Ml LANDE.

BASE LOOK. P PLIoA'rxoN rILE11ooT.11. 1913.

1,102,519, Patented July .7, 1914.

i/llllll THE NORRIS PETERS CO.. PHOTO-1.177101. WASHIN'IFON, D.

UNTTED sTATEs PATENT orrion.

MAX LANDE, OF BROOKLYN, NEW YORK.

SASH-LOCK.

Application filed October 11, 1913.

To all whom it may concern.'

Be it known that I, MAX LANDE, a citizen of the United States, residing at Brooklyn, county of Kings, and State of New York, have invented a new and Improved Sash- Lock, of which the following is a specification.

rIhis invention relates to a sash lock of novel construction which is adapted to lock the sashes in an open or partly open position and forms an effective protection against burglarious entry.

In the accompanying drawing: Figure 1 is a side elevation of a sash lock embodying my hinvention, showing part of the window in section; Fig. 2 a longitudinal section thereof; Fig. 3 a cross section on line 3, 3, Fig. 2; Fig. 4 a cross section on line 4, 4, Fig. 2; Fig. 5 a longitudinal section of the pull handle showing adjoining parts in section; Fig. 6 a cross section on line 6, 6, Fig. 2; Fig. 7 a cross section on line 7, 7, Fig. 2; Fig. 8 a cross section on line SiS, Fig. 7, and Fig. 9 a cross section through the slotted portion of the bolt and shell.

To one of the jambs 10, there is secured at a convenient distance above the top rail 11 of the lower sash, a bracket 12, having a pair of parallel apertured bearings 13, 14, the aperture of the outer bearing, being in communication with a slot 15 (Fig. 6.) Vithin bearings 13, 14, there is free to slide a bolt 16, which is shown to be provided with an inclosing tubular shell 17 intimately secured to the bolt by a screw 18 so as to form part thereof. The outer end of the shell is received within a hollow knob or pull-handle 19 preferably made divisible by being composed of a pair of semi-globular sections which are screwed together. Knob 19 is capable of a slight aXial and also of a rotary play upon the shell and is influenced oy a spring 20, which encircles the shell and engages with one end a flange 21 thereof, while its other end bears against the inner face of the knob. The movement of the knob is checked by a screw or pin 22 eX- tending inwardly therefrom and engaging an L shaped slot 23a, 23b of the shell as shown more fully in Fig. 5.

The outer end of bolt 16 protrudes a distance out of the shell 17, and is provided with a bit 24, this outer or operative end of the bolt being adapted to be projected into a keeper A secured to the frame 25 of the upper sash, so as to lock the latter against Specification of Letters Patent.

Patented July 7, 1914.

serial No. 794,642.

vertical movement. It is preferred to furnish the upper sash with two keepers A. (Fie. 1) of which one is located directly opposite the bottom rail of such sash, while the other is located some distance above such rail so that the sash may be locked in an entirely closed, and also in a partly open or Ventilating position. Each keeper A is shown to be made barrel-shaped, its escutcheon or outer flange 26 being provided with an aperture 27 for the accommodation of the bolt 16 and with a communicating slot 23 for the accommodation of the bolt bit 24. If the bolt is pushed into the keeper, the outer edge of shell 17 will thus constitute a shoulder which upon striking the escutcheon checks the passage of the bolt into the keeper.

As thus far described, the device operates by pushing the bolt by means of its knob 19 across the lower sash into engagement with either keeper of the upper sash, or pulling it out of the saine, so as to lock or unlock the upper sash, and likewise the lower sash.

Means are provided for preventing an unauthorized withdrawal of the bolt from the keeper, by passing a tool from the exterior up between the sashes, turning the bolt until its bit registers with the keeper-slot and then pushing the bolt out of the keeper. These means brieiiy stated consist in a device for locking the bolt to the keeper by closing up the keeper-slot, the means for operating such device being entirely inaccessible from the exterior, but readily operable from the interior.,l The construction of this device is as follows: Bolt 16 is provided with a longitudinal groove 29 within which is longitudinally movable a. latch bar 30 which is inclosed within shell 17 and carries at its outer end a plug 31, that projects outward through a slot 32 of the shell. At its inner end bar 30, is connected, either directly or by means of a coupling member 33, to knob 19, the knob being attached to said member by means of a screw 34. The knob is so influenced by its spring 20, that it has a tendency to move outward upon the shell, and as the latch is rigidly connected to the knob, it will be placed under a like impulse.

In its normal or open position, the latch is retracted and is held in such retracted position by the engagement of pin 22 with the lateral portion 23@L of the L shaped slot in shell 17. To lock the window, the bolt 16 is slid outward by knob 19 so as to pass with its bit 24 through slot 28 into the keeper A, and then a turn is given to the knob so as to give a corresponding turn to the bolt. `In this Way bit 24 Will be brought into engagement with a stop 35 contained Within the keeper (Fig. 7), (which stop is out of alinement with slot 28), While the plug 31 Will arrive directly opposite to such slot. The turning movementI of the knob being continued, while the turning movement of the bolt is however checked by stop 35, the pin 22 Will travel from lateral slot section 23a into longitudinal slot section 23", so as to release the knob 19 and accordingly release the latch 30. ln this Way spring 20, will now push the knob and latch'outvvard so that plug 31 Will enter and close slot 28, and thereby effectively prevent the Withdrawal of the boltl from the keeper. To unlock the Window, the knob is manipulated to Withdraw plug 31, carry bit 24 opposite slot 28, Withdraw the bolt, and lock the plug in its retracted position, as will be readily linderstood. Should it be desired to unlock the lower sash, the bolt is retracted to such an extent that plug 31 passes through slot 15 of bearing 13, so that in this Way the bolt is entirely Withdrawn from above such lower sash.

It Will be seen that by the construction described, the means for opening the keeperslot, and thus permitting the passage therethrough of the bolt-bit are entirely inaccessi ble from the outer side of the Window, so that any tampering With the sash lock is effectively prevented.

I claim:

l. A sash lock comprising a- WindoW bearing, a` bolt slidable therein and having a bit, a sash, a keeper on the sash having a bitslot and adapted to be engaged by the bolt, and means for closing said slot.

2. A sash lock comprising a Window bearing, a bolt slidable therein and having a bit, a latch having a plug, and a keeper adapted to receive the bolt and having a bit-slot adapted to be closed by the plug.

3. A sash lock comprising a bolt having a bit, a latch slidable along the bolt and having a plug, a knob rotatable and axially movable upon the bolt, means for connecting the latch to the knob, and a keeper adapted to receive the bolt and having a bit-slot adapted to be closed by the plug.

4. A sash lock comprising a bolt having a bit, a latch slidable along the bolt and having a plug, a knob rotatable and axially movable upon the bolt, means for connecting the latch to the knob, and a kee er having a slot adapted to admit the bit ando to be closed by the plug, and an abutment for the bit which is out of alinement With the slot 5. A sash lock comprising a bolt having a bit, a latch slidable along the bolt and having a plug, a knob movably mounted on t-he bolt, means for connecting the latch to the knob, a spring engaging the knob, means for checking the movement of the knob upon the bolt, and a keeper adapted to receive the bolt and having a bit-slotadapted to be closed by the plug.

6. A sash lock comprising a bolt having a bit, a latch slidable along the bol-t and having a plug, a knob movably mounted on the bolt means for connecting the latch to the knob, a spring engaging the knob, a pin extending inwardly from the knob, a. member on the bolt having an L shaped slot adapted to be engaged by the pin, and a keeper adapted to receive the bolt and having a bitslot adapted to be closed by the plug.

7. A sash lock comprising a tubular shell, a bolt having a bit and protruding from the shell, a latch slidable along the bolt and having a plug, a knob rotatable and axially movable upon the shell, means for connecting the latch to the knob, and .a keeper adapted to receive the bolt and having a bitslot adapted to be closed by the plug.

8. A sash lock comprising a slotted tubular shell, a grooved bolt having a bit and protruding from the shell, a latch engaging the bolt-groove and having a plug that extends through the shell-slot, a spring-influenced knob connected to the latch and mounted upon the shell, means for locking the latch in a retracted position, and a keeper adapted to receive the bolt and having a bit-slot adapted to be closed by the plug.

MAX LANDE. Witnesses:

FRANK v. BRIESEN, ARTHUR E. ZUMPE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner o1' Patents,

Washington, D. C. 

